User`s guide

6: BSC 2780/3780 Link Configuration Options
DC 900-1340I 163
6.7.1 ASCII/LRC-8
When this setting is used, the BSC control sequences are transmitted in 7-bit ASCII for-
mat, and LRC-8 block checking is performed.
6.7.2 EBCDIC/CRC-16
When this setting is used, the BSC control sequences are transmitted in 8-bit EBCDIC,
and the CRC-16 block check polynomial is used. The parity option is ignored when
using EBCDIC/CRC-16.
6.7.3 ASCII/CRC-16
When this setting is used, the BSC 2780/3780 software performs CRC-16 block check-
ing on all input and output ASCII data blocks. The software transmits and receives
character and data parity depending on the setting of the BSC parity option as shown
below:
0 none No data parity, no control character parity
1 odd No data parity, odd control character parity
2 even No data parity, even control character parity
6.7.4 EBCDIC/CCITT-0
When this setting is used, the BSC control sequences are transmitted in 8-bit EBCDIC,
and the CCITT-0 block check polynomial (X
16
+ X
12
+ X
5
+1) is used. The parity option
is ignored when using EBCDIC/CCITT-0.
6.7.5 ASCII/CCITT-0
When this setting is used, the BSC software uses the CCITT-0 block check polynomial
(X
16
+ X
12
+ X
5
+1) on all input and output ASCII data blocks. The software transmits
and receives character and data parity depending on the setting of the BSC parity option
as shown below: